where to put custom ringtones in ssh on a ipod touch 2g 3.1.2 mb

the reason why is because i want to have a different tone for my alarm and when i downloaded a ringtone from cydia it worked for my alarm clock on a ipod touch 2g 3.1.2 MB so obviously there is a place where i can put the ringtones

Just a disclaimer, the ring tones are in a .m4r format. To create one of these, it looks like you just simply create your ring tone in .aac format and rename it to a .m4r file. I haven't tried it, but it looks easy enough.